What is the Arithmetic mean of the first 'n' natural numbers?
A. $$\frac{{n\left( {n + 1} \right)}}{2}$$
B. $$\frac{{n + 1}}{2}$$
C. $$\frac{{{n^2}\left( {n + 1} \right)}}{2}$$
D. $$2\left( {n + 1} \right)$$
Answer: Option B
Solution (By Examveda Team)
Sum of first $$n$$ natural numbers $$\frac{{n\left( {n + 1} \right)}}{2}$$∴ Required average $$ = \frac{{n\left( {n + 1} \right)}}{{2 \times n}} = \frac{{n + 1}}{2}$$
This Question Belongs to Arithmetic Ability >> Number System
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